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(No Model.)

J. H. BLWARD;

SPARK ARRESTER.

No. 339,538. Patented Apr. '6, 1886.

WITNESSES INVENTOR M A 5W4. W W9 ATTORNEY J.

N. PEYERS. wmwuwu n he lnhinglon. n. c

llnirnndrains PATENT Orricn.

JOHN H. ELW'ARD, OF STILLIVATER, MINNESOTA, ASSIGNOR, BY MESNEASSIGNMENTS, TO E. Q. BROWN, RECEIVER, OF SAME PLACE.

SPARK-ARRESTER.

EPECIFICATION forming part of Letters Patent No. 339,538, dated April 6,1886.

Application filed Dcccmbcrlf), 1381. Serial X0. H.605. (X model.)

to letters or figures of reference marked there- 1 on, which form apartof this specification.

The drawing shows in side elevation at traction-engine having myimproved spark-arrester applied thereto.

\Vhile I have shown my invention applied to a traction or road engine,it will of course be understood that it is equally applicable to enginesof other constructions.

In the drawing, A represents the outer shell of the boiler, within whichis situated the fire flues and furnace. From the fines the products ofcombustion pass into a rear smokechamher, and thence out through thesmokestacl; Q, which is made of two parts hinged together, in order thatthe upper portion may fold down upon the boiler, as is common in thisclass of engines.

Ihe smoke-stack is provided with a netting, q, above which is placed thespark-arrester Q. This I have shown in section in order to betterillustrate its construction. It is formed with a central conical orsemispherical wall, 1

It, provided with a central aperture, r, and with an outer conical orsemispherical wall, It It", extending continuously around and over thetop of the wall It, the part B being hinged at r in order to permitaccess to the interior of the spark-arrester.

A watcrspace is formed between the outer and inner walls, into which thehot and burning sparks and cinders are deflected by means of a centraldownward-prey ccting gnidepiece, S, preferably carried by the hingedpart It of the spark-arrester, and situated directly over the opening0'. ater for quenching such burning sparks and cinders is supplied tothe water-receptacle, by a pump or other suitable means, through a pipe,3* S. two parts of this pipe are hinged at sin such manner that theupper part, S, may be turned down and up with the upper part of thesmokestack.

lhe smoke and gaseous products of combustion pass out freelyinto theopen air through the netting g, which is of so fine mesh as to preventthe escape of any sparks or cinders of such size as to be dangerous,only the solid heavier particles which pass through the stack enteringthe spark arrester Q, which arrangement interferes but little with thedraft, the smoke-passage through the stack and into the air beingpractically straight and unobstructed.

What I claim is- 1. In combination with the furnace and the smoke-stack,the netting q, and the sparlean rester Q, above the netting, andprovided with a water-receptacle, and also with a deflector adapted toguide the sparks and cinders into said water-receptacle, substantiallyas set forth.

2. In combination with the furnace and the smoke-stack, hinged to permitthe upper section thereof to fold down, the spark-arrester having awater-space, and the water-supply pipe S S, arrangcdin sections andadapted to fold with the smoke-stack, substantially as set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN H. ELIVARD.

lVitnesses:

H. H. DOUELEDAY, H. H. Brass.

The

